749751646 has 48 divisors (see below), whose sum is σ = 1422750096. Its totient is φ = 294223104.

The previous prime is 749751643. The next prime is 749751679. The reversal of 749751646 is 646157947.

749751646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a self number, because there is not a number n which added to its sum of digits gives 749751646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749751643) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55561 + ... + 67723.

It is an arithmetic number, because the mean of its divisors is an integer number (29640627).

Almost surely, 2^749751646 is an apocalyptic number.

749751646 is a deficient number, since it is larger than the sum of its proper divisors (672998450).

749751646 is a wasteful number, since it uses less digits than its factorization.

749751646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12233 (or 12226 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 49.

The square root of 749751646 is about 27381.5931968905. The cubic root of 749751646 is about 908.4599988627.

The spelling of 749751646 in words is "seven hundred forty-nine million, seven hundred fifty-one thousand, six hundred forty-six".